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EP1195515A3 - Fuel injector - Google Patents

Fuel injector Download PDF

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Publication number
EP1195515A3
EP1195515A3 EP01123487A EP01123487A EP1195515A3 EP 1195515 A3 EP1195515 A3 EP 1195515A3 EP 01123487 A EP01123487 A EP 01123487A EP 01123487 A EP01123487 A EP 01123487A EP 1195515 A3 EP1195515 A3 EP 1195515A3
Authority
EP
European Patent Office
Prior art keywords
fuel
valve
spray channel
swirl
longitudinal axis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP01123487A
Other languages
German (de)
French (fr)
Other versions
EP1195515A2 (en
Inventor
Hubert Stier
Joerg Heyse
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1195515A2 publication Critical patent/EP1195515A2/en
Publication of EP1195515A3 publication Critical patent/EP1195515A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
    • F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
    • F02M51/0671—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
    • F02M61/12—Other injectors with elongated valve bodies, i.e. of needle-valve type characterised by the provision of guiding or centring means for valve bodies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/162—Means to impart a whirling motion to fuel upstream or near discharging orifices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1806—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
    • F02M61/1833—Discharge orifices having changing cross sections, e.g. being divergent
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1853—Orifice plates

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

Ein Brennstoffeinspritzventil (1), insbesondere zum direkten Einspritzen von Brennstoff in einen Brennraum einer Brennkraftmaschine, umfaßt einen Ventilschließkörper (4), der zusammen mit einer Ventilsitzfläche (6), die an einem Ventilsitzkörper (5) ausgebildet ist, einen Dichtsitz bildet, eine Drallvorrichtung (34) mit Drallkanälen (35) und einen Abspritzkanal (7). Eine Längsachse (46) der in der Drallvorrichtung (34) ausgebildeten Drallkanäle (35) ist relativ zu einer Längsachse (38) des Abspritzkanals (7) so unter einem Winkel (δ) kleiner 90° orientiert, daß der das Brennstoffeinspritzventil (1) durchströmende Brennstoff eine Spiralbahn entlang einer Innenwandung (40) des Abspritzkanals (7) durchläuft.

Figure 00000001
A fuel injection valve (1), in particular for the direct injection of fuel into a combustion chamber of an internal combustion engine, comprises a valve closing body (4), which together with a valve seat surface (6) which is formed on a valve seat body (5), forms a sealing seat, a swirl device (34) with swirl channels (35) and a spray channel (7). A longitudinal axis (46) of the swirl channels (35) formed in the swirl device (34) is oriented relative to a longitudinal axis (38) of the spray channel (7) at an angle (δ) of less than 90 ° such that it flows through the fuel injection valve (1) Fuel passes through a spiral path along an inner wall (40) of the spray channel (7).
Figure 00000001
EP01123487A 2000-10-04 2001-09-28 Fuel injector Withdrawn EP1195515A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10049033 2000-10-04
DE2000149033 DE10049033B4 (en) 2000-10-04 2000-10-04 Fuel injector

Publications (2)

Publication Number Publication Date
EP1195515A2 EP1195515A2 (en) 2002-04-10
EP1195515A3 true EP1195515A3 (en) 2003-04-23

Family

ID=7658588

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01123487A Withdrawn EP1195515A3 (en) 2000-10-04 2001-09-28 Fuel injector

Country Status (3)

Country Link
EP (1) EP1195515A3 (en)
JP (1) JP2002115625A (en)
DE (1) DE10049033B4 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109715934A (en) * 2016-09-28 2019-05-03 日立汽车系统株式会社 Fuel injection valve

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10329731A1 (en) * 2003-07-02 2005-02-03 Robert Bosch Gmbh Fuel injection valve and a method for producing the same
JP4100286B2 (en) * 2003-07-22 2008-06-11 株式会社デンソー Fluid injection valve
DE102004036085A1 (en) * 2004-07-24 2006-02-16 Volkswagen Ag Fuel injecting valve for internal combustion engine has fuel injecting opening connected to high pressure area and another opening is so arranged that fuel comes out of valve with full force
DE102006051327A1 (en) * 2006-10-31 2008-05-08 Robert Bosch Gmbh Fuel injector
EP2415999B1 (en) 2009-03-30 2017-05-03 Keihin Corporation Gas fuel injection valve
JP5277056B2 (en) * 2009-04-10 2013-08-28 日立オートモティブシステムズ株式会社 Fuel injection valve
US8317112B2 (en) 2010-01-25 2012-11-27 Continental Automotive Systems Us, Inc. High pressure fuel injector seat that resists distortion during welding
US9151259B2 (en) * 2012-06-11 2015-10-06 Continental Automotive Systems, Inc. Stepped orifice hole
EP3009662A1 (en) * 2014-10-15 2016-04-20 Continental Automotive GmbH Nozzle body for a fluid injector and fluid injector
DE102015226326A1 (en) * 2015-12-21 2017-06-22 Robert Bosch Gmbh Hydraulic coupler and fuel injection valve with such
FR3054614A1 (en) * 2016-08-01 2018-02-02 Delphi International Operations Luxembourg S.A.R.L. INJECTOR NOZZLE BODY

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE972387C (en) * 1953-04-15 1959-07-09 Daimler Benz Ag Fuel injection nozzle with swirl effect
DE3121572A1 (en) * 1981-05-30 1982-12-16 Robert Bosch Gmbh, 7000 Stuttgart "INJECTION VALVE"
FR2773852A1 (en) * 1998-01-20 1999-07-23 Sagem Fuel injector for IC engine with controlled ignition
WO1999053191A1 (en) * 1998-04-08 1999-10-21 Robert Bosch Gmbh Fuel injection valve

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4230273A (en) * 1978-02-07 1980-10-28 The Bendix Corporation Fuel injection valve and single point system
DE3939093A1 (en) * 1989-11-25 1991-05-29 Bosch Gmbh Robert ELECTROMAGNETICALLY ACTUABLE FUEL INJECTION VALVE
JP3134813B2 (en) * 1997-06-20 2001-02-13 トヨタ自動車株式会社 Fuel injection valve for internal combustion engine
DE19736682A1 (en) * 1997-08-22 1999-02-25 Bosch Gmbh Robert Fuel injector for internal combustion engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE972387C (en) * 1953-04-15 1959-07-09 Daimler Benz Ag Fuel injection nozzle with swirl effect
DE3121572A1 (en) * 1981-05-30 1982-12-16 Robert Bosch Gmbh, 7000 Stuttgart "INJECTION VALVE"
FR2773852A1 (en) * 1998-01-20 1999-07-23 Sagem Fuel injector for IC engine with controlled ignition
WO1999053191A1 (en) * 1998-04-08 1999-10-21 Robert Bosch Gmbh Fuel injection valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109715934A (en) * 2016-09-28 2019-05-03 日立汽车系统株式会社 Fuel injection valve
CN109715934B (en) * 2016-09-28 2021-02-26 日立汽车系统株式会社 Fuel injection valve

Also Published As

Publication number Publication date
DE10049033B4 (en) 2005-08-04
DE10049033A1 (en) 2002-04-18
EP1195515A2 (en) 2002-04-10
JP2002115625A (en) 2002-04-19

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